How can i do an collapsible section in README.md file?

[jorgerenteria]

Hello, I want to do a collapsible section in a readme.md file like this:

## collapsible markdown?

<details><summary>CLICK ME</summary>
<p>

#### yes, even hidden code blocks!

```python
print("hello world!")
```

</p>
</details>

  How can i do it?

[Youssef EL ABBASSI CHRAIBI]

This would be a really nice to have feature. 

[Elias Rami]

i also would like to have this feature

[Martin_Danielson]

+1

[knope]

Github can do it.

[Elias Rami]

yes github can do that,

buts that not an option if you have on premise setups for bitbucket, jira & confluence

[matt_baker]

+1 Needed feature

[Jake Mossman]

+1

[Peter Shen]

+1

[Peter Shen]

+1 

<details><summary>Click to see details</summary>

[Jonathan Gafner]

@Boris Berenberg - Atlas Authority  Hi
Any update on this ticket ? 

[Taras Stetsiak]

Also interested in this

[Jonathan Gafner]

+1

[Iyarl]

+1 would really appreciate it

[Kadir Akbudak]

+1 a must-have feature. GitHub has it.

[koichi.miyaji]

+1

[AlvinSartor]

+1 Needed feature

[Valerian Precop]

+1
Would be really nice to have it on bitbucket indeed

[Felipe_de_Macêdo]

Would be really nice to have it on bitbucket

[Asieh Vejdani]

This is nice feature and seems it is not supported yet.

[Meir Gabay]

+1

[Boris Berenberg - Atlas Authority]

This is not possible in Bitbucket today

[cxw42]

It looks like this is open for Server as https://jira.atlassian.com/browse/BSERV-12158 --- do you know if there is a ticket for Cloud?  I couldn't find one, but may have been looking in the wrong place.  Thanks!